1. From the Department of Neurology (L.L., C.L., M.C.-Á., Á.C., A.V., L.Q., E.G., M.O.), Neuromuscular Diseases Unit; Department of Genetics (A.S.-C., B.R.-S.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona; Department of Neurology (C.D.-G.), Neuromuscular Diseases Unit, Hospital Universitario 12 de Octubre. Research Institute imas12, Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid, Spain; Université Paris-Est Créteil (E.M.)...